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f
Ruby
Kyanite Cyprine
Kyanite Cyprine and Ruby Physical Properties
Summary
Astrology
Physical Properties
Optical Properties
Benefits
All
Physical Properties
Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.97-4.05
3.55-3.70
Fracture
Conchoidal
-
Cleavage
No true cleavage
Perfect
Mohs Hardness
9
4-7
Chemical Composition
Al
2
O
3
Al 2SiO 5Arthur Thomas , Gemstones (2009) More from other references
Optical Properties >>
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